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Plant Resources, Chemical Constituents, and Bioactivities of Tea Plants from the Genus Camellia Section Thea.
TLDR
The geographical distribution of tea plants and the chemical constituents reported from the genus Camellia section Thea and some tea products that have ever been studied between 1970 and 2018 have been summarized, taking species as the main hint, and the main biological activities are also discussed.
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New Flavoalkaloids with Potent α-Glucosidase and Acetylcholinesterase Inhibitory Activities from Yunnan Black Tea 'Jin-Ya'.
TLDR
The HPLC and LC-MS analyses showed the existence of N-ethyl-2-pyrrolidinone substituted flavan-3-ols in 'Jin-Ya', which is a Yunnan black tea produced only from buds of tea plant, Camellia sinensis var.
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A new arbutin derivative from the leaves of Vaccinium dunalianum wight
TLDR
The structure of 1 was elucidated by extensive 1D and 2D NMR, HR-MS and CD spectroscopic analyses and, kaempferol 3-O-β-D-sambubioside (7) was isolated from the genus Vaccinium for the first time.
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New degradation mechanism of black tea pigment theaflavin involving condensation with epigallocatechin-3-O-gallate.
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HPLC simultaneous determination of arbutin, chlorogenic acid and 6′-O-caffeoylarbutin in different parts of Vaccinium dunalianum Wight
TLDR
A reliable, reproducible and accurate method for simultaneous and quantitative determination of 1–3 is developed by RP-HPLC analysis and this method should be appropriate for the quality assurance of unprocessed and processed materials of V. dunalianum.
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A new catechin derivative from the fruits of Rosa sterilis S. D. Shi
Abstract A new catechin derivative named as sterilin A (1), and three known compounds, (+)-catechin (2), kaji-ichigoside F1 (3) and 2α,3α,19α-trihydroxyurs-12-en-28-oic acid-28-O-β-D-xylopyranosyl-(1…
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The genus Rumex (Polygonaceae): an ethnobotanical, phytochemical and pharmacological review
Rumex L., a genus in Polygonaceae family with about 200 species, is growing widely around the world. Some Rumex species, called "sorrel" or "dock", have been used as food application and treatment of…
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Pu-er Tea from Camellia sinensis (L.) Kuntze and Related Plants
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New seco-anthraquinone glucoside from the roots of Rumex crispus
A new seco-anthraquinone, crispuside A ( 1 ), and three new 3,4-dihydronaphthalen-1(2 H )-ones, napthalenones A-C ( 2 – 4 ), were isolated from the roots of Rumex crispus L., along with 10 known…
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